Pathological aging of the brain: An overview

• Type: Another Publication in an International Scientific Journal
• Date: 2004

Authors

Bastos-Leite AJ (Author) Other; Scheltens, P (Author) Other; Barkhof, F (Author) Other

Journal

The Journal is awaiting validation by the Administrative Services.

Title: Topics in Magnetic Resonance Imaging

Vol. 15

Pages: 369-389

ISSN: 0899-3459

Publisher: Ovid Technologies (Wolters Kluwer Health)

Indexing

Scopus - 63 Citations

Other information

Authenticus ID: P-007-DS4

DOI: 10.1097/01.rmr.0000168070.90113.dc

Abstract (EN): The number of elderly people is increasing rapidly and, therefore, an increase in neurodegenerative and cerebrovascular disorders causing dementia is expected. Alzheimer disease (AD) is the most common cause of dementia. Vascular dementia, dementia with Lewy bodies, and frontotemporal dementia are the most frequent causes after AD, but a large proportion of patients have a combination of degenerative and vascular brain pathology. Characteristic magnetic resonance (MR) imaging findings can contribute to the identification of different diseases causing dementia. The MR imaging protocol should include axial T2-weighted images (T2-WI), axial fluid-attenuated inversion recovery (FLAIR) or proton density-weighted images, and axial gradient-echo T2*-weighted images, for the detection of cerebrovascular pathology. Structural neuroimaging in dementia is focused on detection of brain atrophy, especially in the medial temporal lobe, for which coronal high resolution T1-weighted images perpendicular to the long axis of the temporal lobe are extremely important. Single photon emission computed tomography and positron emission tomography may have added value in the diagnosis of dementia and may become more important in the future, due to the development of radioligands for in vivo detection of AD pathology. New functional MR techniques and serial volumetric imaging studies to identify subtle brain abnormalities may also provide surrogate markers for pathologic processes that occur in diseases causing dementia and, in conjunction with clinical evaluation, may enable a more rigorous and early diagnosis, approaching the accuracy of neuropathology. Copyright © 2005 by Lippincott Williams & Wilkins.

Language: English

Type (Professor's evaluation): Scientific